NY/T 2015-2011
ActiveDetermination of centrifugable pulp content in citrus juices
柑橘果汁中离心果肉浆含量的测定
Catalogue
前言 → 1 范围 → 2 原理 → 3 仪器和设备 → 4 分析步骤 → 5 结果计算 → 6 精密度 Foreword → 1 Scope → 2 Principle → 3 Apparatus and Equipment → 4 Analytical Procedure → 5 Calculation of Results → 6 Precision
Scope
This standard specifies the centrifugal determination method for the content of centrifugable pulp in citrus juices. This standard is applicable to the determination of centrifugable pulp content in citrus juices.
本标准规定了柑橘果汁中离心果肉浆含量的离心测定方法。本标准适用于柑橘果汁中离心果肉浆含量的测定。
Keywords
Application Summary AI generated
Citrus juice manufacturers and quality inspection agencies use this standard to measure the content of centrifugable pulp in juice. This parameter affects juice clarity, mouthfeel, and product grading. Accurate determination helps control product quality and meet market requirements.
柑橘果汁生产企业和质检机构使用本标准来测定果汁中离心果肉浆的含量。该指标影响果汁的澄清度、口感和产品分级。准确测定有助于控制产品质量和满足市场要求。
AI Summary AI generated
This standard specifies a centrifugal method for determining the content of centrifugable pulp in citrus juices, applicable to both raw and concentrated juices. The procedure includes sample preparation, centrifugation at 370 g to 400 g for 10 minutes, reading of sediment volume, and calculation of pulp content as volume fraction. Results are reported to three significant figures. Repeatability requirements are also provided.
本标准规定了柑橘果汁中离心果肉浆含量的离心测定方法，适用于柑橘原汁和浓缩汁。方法包括试样制备、离心分离、读数记录和结果计算，以体积分数表示果肉浆含量。要求离心加速度370 g~400 g，离心时间10 min。结果保留三位有效数字。标准还规定了重复性要求。
Key Sentences extracted from text
本标准规定了柑橘果汁中离心果肉浆含量的离心测定方法。
柑橘原果汁样品经离心法处理后，以果肉浆在果汁中的体积分数表示果肉浆的含量。
离心机:离心管底部能产生至少370 g离心加速度。
将刻度离心管置入离心机中，在产生370 g~400 g离心加速度的旋转频率下离心10 min。
试样中离心果肉浆的含量以体积分数φ计，数值以毫升每升(mL/L)计，按式(1)计算。
This standard specifies the centrifugal determination method for the content of centrifugable pulp in citrus juices.
After the citrus raw juice sample is treated by centrifugation, the content of pulp is expressed as the volume fraction of pulp in the juice.
Centrifuge: capable of producing a centrifugal acceleration of at least 370 g at the bottom of the centrifuge tube.
Place the graduated centrifuge tube into the centrifuge and centrifuge for 10 min at a rotation frequency that produces a centrifugal acceleration of 370 g to 400 g.
The content of centrifugable pulp in the sample is expressed as volume fraction φ, in milliliters per liter (mL/L), calculated according to formula (1).